sudo python Topology.py
N = 6
*** Creating network
*** Adding controller
*** Adding hosts:
a b c d e u
*** Adding switches:
s1 s2
*** Adding links:
(5.00Mbit 3ms delay 2% loss) *** Error: RTNETLINK answers: No such file or directory
(5.00Mbit 3ms delay 2% loss) *** Error: RTNETLINK answers: No such file or directory
(a, s1) (5.00Mbit 3ms delay 2% loss) *** Error: RTNETLINK answers: No such file or directory
(5.00Mbit 3ms delay 2% loss) *** Error: RTNETLINK answers: No such file or directory
(b, s1) (5.00Mbit 3ms delay 2% loss) *** Error: RTNETLINK answers: No such file or directory
(5.00Mbit 3ms delay 2% loss) *** Error: RTNETLINK answers: No such file or directory
(c, s2) (5.00Mbit 3ms delay 2% loss) *** Error: RTNETLINK answers: No such file or directory
(5.00Mbit 3ms delay 2% loss) *** Error: RTNETLINK answers: No such file or directory
(d, s2) (5.00Mbit 3ms delay 2% loss) *** Error: RTNETLINK answers: No such file or directory
(5.00Mbit 3ms delay 2% loss) *** Error: RTNETLINK answers: No such file or directory
(e, s1) Traceback (most recent call last):
File "Topology.py", line 45, in <module>
perfTest()
File "Topology.py", line 33, in perfTest
net = Mininet(topo=topo,host=CPULimitedHost,link=TCLink,controller=OVSController)
File "/usr/lib/python2.7/dist-packages/mininet/net.py", line 172, in __init__
self.build()
File "/usr/lib/python2.7/dist-packages/mininet/net.py", line 442, in build
self.buildFromTopo( self.topo )
File "/usr/lib/python2.7/dist-packages/mininet/net.py", line 429, in buildFromTopo
self.addLink( **params )
File "/usr/lib/python2.7/dist-packages/mininet/net.py", line 364, in addLink
link = cls( node1, node2, **options )
File "/usr/lib/python2.7/dist-packages/mininet/link.py", line 534, in __init__
params2=params )
File "/usr/lib/python2.7/dist-packages/mininet/link.py", line 424, in __init__
node1, node2, deleteIntfs=False )
File "/usr/lib/python2.7/dist-packages/mininet/link.py", line 468, in makeIntfPair
deleteIntfs=deleteIntfs )
File "/usr/lib/python2.7/dist-packages/mininet/util.py", line 194, in makeIntfPair
( intf1, intf2, cmdOutput ) )
Exception: Error creating interface pair (s1-eth4,s2-eth4): RTNETLINK answers: File exists
Это ошибка возникает, когда я запускаю свою программу на Python, реализующую мининет. Я нашел тему по той же проблеме, но ни один из методов не работал для меня.
Вот мой код:
#! /usr/bin/python
from mininet.topo import Topo
from mininet.net import Mininet
from mininet.util import dumpNodeConnections
from mininet.log import setLogLevel
from mininet.node import OVSController,CPULimitedHost
from mininet.link import TCLink
from mininet.cli import CLI
class SingleSwitchTopo(Topo):
"Single switch connected to n hosts"
def build(self,n=2):
print('N = %s' %(n))
switch_1 = self.addSwitch('s1')
switch_2 = self.addSwitch('s2')
host=self.addHost('a')
self.addLink(host,switch_1,bw=5,delay='3ms',loss=2,max_queue_size=300)
host=self.addHost('b')
self.addLink(host,switch_1,bw=5,delay='3ms',loss=2,max_queue_size=300)
host=self.addHost('e')
self.addLink(host,switch_1,bw=5,delay='3ms',loss=2,max_queue_size=300)
host=self.addHost('c')
self.addLink(host,switch_2,bw=5,delay='3ms',loss=2,max_queue_size=300)
host=self.addHost('d')
self.addLink(host,switch_2,bw=5,delay='3ms',loss=2,max_queue_size=300)
host=self.addHost('u')
self.addLink(host,switch_2,bw=5,delay='3ms',loss=2,max_queue_size=300)
self.addLink(switch_1,switch_2,bw=15,delay='2ms')
def perfTest():
topo = SingleSwitchTopo(6)
net = Mininet(topo=topo,host=CPULimitedHost,link=TCLink,controller=OVSController)
net.start()
print "Dumping the Node Information"
dumpNodeConnections(net.hosts)
print "Testing the network connectivity"
net.pingAll()
CLI(net)
net.stop()
if __name__ == '__main__':
#Start mininet using perfTest Function
setLogLevel('info')
perfTest()
Я пытаюсь добавить 6 хостов с 2 коммутаторами. Есть ли какая-нибудь работа для этого?
Аналогичная тема, связанная с этой проблемой: Minenet не может найти требуемый исполняемый контроллер
Перепробовал все, что в теме выше. У меня ничего не работает.
